System and Damage Identification of Civil Structures

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In recent years, structural health monitoring has received increasing attention in the civil engineering research community with the objective to identify structural damage at the earliest possible stage and evaluate the remaining useful life (damage prognosis) of structures. Vibration-based, non-destructive damage identification is based on changes in dynamic characteristics (e.g., modal parameters) of a structure for identifying structural damage. Experimental modal analysis (EMA) has been used as a technology for identifying modal parameters of a structure based on its measured vibration data. It should be emphasized that the success of damage identification based on EMA depends strongly on the accuracy and completeness of the identified structural dynamic properties.aMathematical description of linear dynamical systems.a SIAM J. Control, 1(2),
152-192. ... Proc., 12th Asilomar Conference on Circuits, Systems and Computers
, Pacific Grove, USA, 705-714. Ljung, L. (1999). System ... aClosed-form solutions
for the response of linear systems to fully nonstationary earthquake excitation.a
Journal of Engineering Mechanics, ASCE, 124(6), 684-694. Phan, M., Horta, L. G.
, anbsp;...

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System and Damage Identification of Civil Structures

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ProQuest - 2007

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